I've been filing my freelance computer programming income as self-employment for the past 18 years (and it was my only source of income until 2019), but I'm now retired (72), living off Social Security benefits, and my programming work is only bringing in $2-3K a year. Would I be better off filing my programming income as hobby/other income to skirt the 15% self-employment tax, and would that be legal? My social security income is $27K before Medicare deductions.